BR8803528A - PROCESS FOR THE PREPARATION OF FLUORIDRIC ACID AND ANHYDRITE - Google Patents

PROCESS FOR THE PREPARATION OF FLUORIDRIC ACID AND ANHYDRITE

Info

Publication number: BR8803528A
Authority: BR; Brazil
Prior art keywords: anhydrite; preparation; fluoridric; acid; fluoridric acid
Prior art date: 1987-07-14

Application number

BR8803528A

Other languages

Portuguese (pt)

Inventor

Gustav Kaule

Hans Rinkes

Johann-Peter Stolle

Hans-Joachim Beck

Original Assignee

Bayer Ag

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1987-07-14

Filing date

1988-07-13

Publication date

1989-02-08

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6331519&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR8803528(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1988-07-13 Application filed by Bayer Ag filed Critical Bayer Ag

1989-02-08 Publication of BR8803528A publication Critical patent/BR8803528A/en

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/192—Preparation from fluorspar
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Air Supply (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Physical Or Chemical Processes And Apparatus (AREA)
Muffle Furnaces And Rotary Kilns (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

BR8803528A 1987-07-14 1988-07-13 PROCESS FOR THE PREPARATION OF FLUORIDRIC ACID AND ANHYDRITE BR8803528A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19873723197 DE3723197A1 (en)	1987-07-14	1987-07-14	METHOD FOR PRODUCING HYDROCHLORIC ACID AND ANHYDRITE

Publications (1)

Publication Number	Publication Date
BR8803528A true BR8803528A (en)	1989-02-08

Family

ID=6331519

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR8803528A BR8803528A (en)	1987-07-14	1988-07-13	PROCESS FOR THE PREPARATION OF FLUORIDRIC ACID AND ANHYDRITE

Country Status (7)

Country	Link
EP (1)	EP0299306B1 (en)
JP (1)	JPS6437403A (en)
BR (1)	BR8803528A (en)
DE (2)	DE3723197A1 (en)
ES (1)	ES2029496T3 (en)
GR (1)	GR3004306T3 (en)
ZA (1)	ZA885053B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10031562A1 (en) *	2000-06-28	2002-01-10	Bayer Ag	Process for the production of hydrogen fluoride in a rotary kiln
JP4599673B2 (en) *	2000-07-10	2010-12-15	ダイキン工業株式会社	Hydrogen fluoride production apparatus and production method
CN101786607B (en) *	2010-02-11	2011-08-17	浙江中宁硅业有限公司	Method for preparing hydrogen fluoride from byproduct generated in the process of producing silane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1316980A (en) *	1961-04-27	1963-02-01	Allied Chem	Process for manufacturing hydrofluoric acid by the action of sulfuric acid on fluorspar
US3719747A (en) *	1971-03-04	1973-03-06	Stauffer Chemical Co	Hydrothermal process for making hydrogen fluoride
CH617641A5 (en) *	1975-04-18	1980-06-13	List Heinz	Process for preparing hydrofluoric acid
AU513116B2 (en) *	1978-11-24	1980-11-13	Thagard, George F. Jr.	Fluid-wall reactors

1987
- 1987-07-14 DE DE19873723197 patent/DE3723197A1/en active Granted
1988
- 1988-07-02 DE DE8888110597T patent/DE3868737D1/en not_active Expired - Lifetime
- 1988-07-02 ES ES198888110597T patent/ES2029496T3/en not_active Expired - Lifetime
- 1988-07-02 EP EP88110597A patent/EP0299306B1/en not_active Expired - Lifetime
- 1988-07-07 JP JP63167902A patent/JPS6437403A/en active Pending
- 1988-07-13 ZA ZA885053A patent/ZA885053B/en unknown
- 1988-07-13 BR BR8803528A patent/BR8803528A/en unknown
1992
- 1992-04-08 GR GR920400668T patent/GR3004306T3/el unknown

Also Published As

Publication number	Publication date
DE3723197A1 (en)	1989-01-26
ZA885053B (en)	1989-04-26
DE3868737D1 (en)	1992-04-09
EP0299306B1 (en)	1992-03-04
GR3004306T3 (en)	1993-03-31
DE3723197C2 (en)	1989-05-03
JPS6437403A (en)	1989-02-08
EP0299306A3 (en)	1989-11-23
EP0299306A2 (en)	1989-01-18
ES2029496T3 (en)	1992-08-16

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